100 rupee coin will be available soon said by the Indian Government:

Rs 100 coin – Anything can Possible in Our PM Narendra Modi’s BJP Government – Indian government on early released Rs.10 coins at the birth centenary of Carnatic singer and Bharat Ratna awardee late M.S. Subbulakshmi. Now Indian Government will soon release the coins of Rs.100 and Rs.5 soon to be released on the 100th birth ceremony of late Chief Minister M.G. Ramachandran of Tamil Nadu.Structure of Rs. 100 and Rs.5
Rs 100 coin will be 44 millimeters in diameter with a metal composition of silver,copper,nickel and zinc and could be measured with the weight of 35 grams. And One side of Rs.100 coin bear “Lion Capitol of Ashoka Pillar” in the centre with “Satyamev Jayate” and also bear the rupee symbol and denominational value “100”. On the reverse side the coin bears to portrait of M.G. Ramachandran on the center.
On the other hand Rs.5 coins comes with 23 millimeters in diameter and it weighted by 6 grams. The metal composition of the Rs 5 coin will be Copper, zinc and nickel.